unused dependency 'sitemap', 'filter' option should return boolean

[alextim]

Changes

• remove unused dependency 'sitemap'. it is not used, but it exists in package dependencies;
• better typings for SitemapOptions: filter?(page: string): it should return Boolean instead of String.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 257134c

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[natemoo-re]

Thanks for the PR!